Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.

Abstract: A mask restraining system used with a bag mask resuscitator for securely seating a mask on a patient's face is disclosed. The mask restraining system may include a retainer defining upper and lower slots adapted to engage first and second cords, respectively. The bag mask resuscitator may include hollow, flexible tubing having a distal end in communication with a resuscitation bag for forcing air through the flexible tubing and a proximal end in communication with a valve assembly that is rotatably engaged with the mask. The mask includes a port adapted to engage an aperture defined by the retainer in order to engage the mask to the retainer. The first and second cords may be engaged to the upper slots and lower slots, respectively, in order to securely seat the mask on the patient' face when the first and second cords are tightened relative to the retainer.

Abstract: A bag mask resuscitator including flexible tubing having a proximal end and a distal end with the proximal end engaged to a resuscitation bag and the distal end adapted for engagement with a valve assembly is disclosed. The valve assembly includes a coupling member adapted for quick engagement and disengagement of the flexible tubing from the valve assembly using a simple action.

Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The fill opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.

Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The fill opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.